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William Atherton Knight (born July 30, 1947) is an American actor, best known for portraying Richard Thornburg in Die Hard and its sequel and Walter Peck in Ghostbusters.
When Hell's wrath kicks in once again (this time dragging random people into hell), the Ghostbusters are forced to find a way to go there, rescue all the missing people, and tell Satan to back off. Sounds simple, right?